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Sedimentary rocks are primarily formed from deposited sediments, which can include fragments of igneous, metamorphic, and older sedimentary rocks. These sediments are transported by water, wind, or ice and accumulate in layers over time. Common types of sedimentary rocks include sandstone, limestone, and shale, which are formed from sand, biological materials, and clay, respectively. Additionally, volcanic ash can also contribute to sedimentary deposits.
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What is likely to happen to sediments deposited by a river over hundreds or thousands of years?
Sediments deposited by a river over hundreds or thousands of years are likely to undergo compaction, lithification, and possibly uplift to form sedimentary rocks. These rocks may eventually be exposed by erosion or tectonic forces, revealing the geological history of the area.
How do Sedimentary rocks formed and what are they made of?
Sedimantary RocksThese rocks are formed from th ehot lavaJk jk i was bored i dont reall know what they mean and i real HATE STAaR
What type of rocks would you expect to find at the mouth of a river?
At the mouth of a river, you would expect to find a mix of sedimentary rocks, such as sandstone, siltstone, and shale, that have been eroded and transported by the river. You may also find some rounded pebbles or cobbles made of harder rock types that have been carried downstream. Additionally, there could be some deposited sediments like sand and gravel.
When do sediments form during the rock cycle?
Sediments form during the erosion and weathering processes that break down rocks into smaller particles. These sediments may then undergo deposition and compaction to form sedimentary rocks in the rock cycle.
Ripple marks in rocks are formed by?
They initially are formed by moving water which arranges sediment in patterned formations. If the ripples in the sediment are covered with other sediments before being obliterated, or if the ripple marks dry, and are then covered with subsequent sediments, they may eventually be preserved in the rock strata.
What are three things that the sediments in sedimentary rocks may be made of?
Sediments in sedimentary rocks may be made of fragments of other rocks, minerals, and organic material like remains of plants and animals. These sediments are typically transported and deposited by processes such as erosion, weathering, and deposition.
Are rocks sediments?
Technically rocks are not sediments, rather sediments are derived from weathered rock material. These sediments may conslidate and form rocks such as sandstones and mudstones, which include shales and siltstones. This variety of rock types is of sedimentary origin. Other types of rocks are formed by igneous and or metamorphic processes. Hope that answers your question.
When rocks undergo weathering they become?
When rocks undergo weathering, they become smaller in size and break down into smaller pieces called sediments. These sediments can eventually be transported and deposited in new locations, where they may become compacted and cemented together to form sedimentary rocks.
Why are sedimentary rocks formed in layers?
Sedimentation of transported weathered and eroded material is continuous, cyclical, or event based. New sediments are deposited on top of existing sediments, forming layers that may be visible in a sedimentary rock body.
What is likely to happen to sediments deposited by a river over hundreds or thousands of years?
Sediments deposited by a river over hundreds or thousands of years are likely to undergo compaction, lithification, and possibly uplift to form sedimentary rocks. These rocks may eventually be exposed by erosion or tectonic forces, revealing the geological history of the area.
Where do many of these sediments end up?
Many sediments end up in the ocean, where they are deposited on the seafloor. Others may accumulate in lakes, rivers, or on land. Over time, these sediments can become compressed and cemented together to form sedimentary rocks.
How do Sedimentary rocks formed and what are they made of?
Sedimantary RocksThese rocks are formed from th ehot lavaJk jk i was bored i dont reall know what they mean and i real HATE STAaR
Sedimentary rocks are separated by a lines of weakness what are they called?
Sedimentary rocks are separated by lines of weakness called bedding planes. These planes represent the original horizontal layers in which the sediments were deposited, and they often serve as zones of weakness along which rocks may break or deform.
How are sediments created and how do those sediments make new landforms?
Sediments are created through the erosion of rocks or organic materials by wind, water, ice, or gravity. These sediments can then accumulate and be deposited in new locations, where they can form new landforms through processes such as sediment compaction, cementation, and lithification. Over time, these processes may lead to the formation of landforms like mountains, valleys, and plains.
Where do sedimentary rocks come from above ground or underground?
Sedimentary rocks are typically formed above ground through the accumulation and compaction of sediment particles such as sand, clay, and organic material. These sediments may originate from weathering and erosion of existing rocks. Once deposited, pressure and cementation over time solidify the sediments into sedimentary rocks.
Erosion and deposition play roles in the formation of what kind of rock?
Erosion and deposition play important roles in the formation of sedimentary rock. Erosion breaks down rocks into sediments which are then transported and deposited in layers. Over time, these sediments are compacted and cemented together to form sedimentary rocks.
What type of rocks would you expect to find at the mouth of a river?
At the mouth of a river, you would expect to find a mix of sedimentary rocks, such as sandstone, siltstone, and shale, that have been eroded and transported by the river. You may also find some rounded pebbles or cobbles made of harder rock types that have been carried downstream. Additionally, there could be some deposited sediments like sand and gravel.
